Manufacture of swivel or universal hocks



J. TAIT.

MANUFACTURE OF SWIVEL 0R UNIVERSAL HOOKS.

APPLICATION FILED MAR. 10. 1920.

1,404,807. Patented Jan. 31, 1922.

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JOSEPH TAIT, 0F BIRMINGHAM, ENG-LAND.

MIANUFACTURE OE SWIVEL OR UNIVERSAL HOOKS.

Specification of Letters Patent.

Patented Jan. 31,

Application filed March 10, 1920. Serial No, 364,871.

(GRANTED-UNDER THE PRUVISIGNS OF THE AGTQF IYIARGIZ 3, 1921, L1 STAT. I, 1313.)

To (47 Z 4.1; 71 am it may concern Be it known that JOSEPH TAIT, subject of which two hooks, a short and long one, are

connected together by a swivel, the object of which is to enable the bottom hook to turn in any direction on the shorter one.

In the arrangements hitherto existing, a headed pin consisting of a ball or cheese head, is permitted to turn in any direction, such arrangements being made either by casting around the said heads to form the socket part, or by forming a ball to fit a metal cup by turning the metal over the ball. Other similar devices have also been adopted.

These arrangements have many disadvantages, such as cost of production, the joint not giving reliable results in casting, and the turning over of the metal rendering them unserviceable.

In the arrangement forming the object of this invention, I dispense with the casting or the turning of metal over the ball on the headed shank.

A distinguished feature of my said invention is that I make the device tromsolid drawn rods or tubes in the following man I provide an ordinary butchers hook, that is to say, the bottom hook, having a cheese or semispherical head. I make a tubular socket to fit over the said head which rests, and is capable of turning in any direction on a flange formed on the lower end of the socket, the upper part of which is screwed internally. Into the said screwed part of the socket. I fit a screw shank, which integral with the upper hook. This said screwed shank takes bearing on the head ofthe lower hook sutliciently to enable its turning in any direction, and to admit of adjustment. I may in some cases furnish the said screw shank with a. set pin or look nut.

This said shank and upper hook is made from ordinary solid drawn tubing or rod.

I may in some cases make the screw socket and shank and upper hook irom specially shaped tubing or rod, sawn oil in lengths.

In order that my invention may be more readily understood reference is made in the following particular description to the acthe cheese head 6, adapted to fit loosely into the tubular screwed socket 0, (Z is the short hook provided with the screwed shank, e; 7' is a lock nut.

The lower or large hook a is made from a length of solid drawn rod. The cheese head 6 may be screwed thereon, or may be attached by electric or other weldings as shown in Figures 3 and 5, or I may make this said hook by rolling or drawing in length such as shown at Figure 7, and sawing off to the required length. The lower hook a is capable of turning on the head Z), in any direction as shown at Figure 1. The shorter hook (Z, is made from a length of solid drawn rod, with the shank 6 shown at Figure 6, in the same manner as that aforesaid, in connection with the long hook a, or I may makethem from rolled or drawn red as shown at Figure 8, and sawn ed to the required lengths.

This said shank e is screwed to fit the socket 0, so as to enable the head 6 to turn freely within the socket 0, the lock nut f keeping the parts in their place.

The screw socket 0 Figures 4 and 9, is made from solid drawn tubing. The flange 7b is made by. pressing inward a portion of the metal, or I may make this said flange by inserting a screw plug 7 such as shown in Figure 9. It is obvious that the parts of the said joint may be detached for cleansing purposes.

In a meat hook, the combination with an internally threaded tubular socket having one end open and the opposite end provided With an in'turned perforated flange, an up Wardly directed hook having an elongated shank said shank havin an enlar ed head freely movable in the perforation in the flange and resting on the flange Within the socket, a second. downwardly directed hook having a shorter shank, said shank having a portion thereol enlarged and threaded designed to engage the threads on the inner face of the socket, and a lock nut having a central orifice through Which the Shank of the second hook member extends, said look nut having a threaded shank within the open end ofthe socket and engaging the threads of the latter.

JOSEPH TAIT.

Witnesses SIDNEY F. WRIGHT, FLORENCE M. BARACLOUGH. 

